click for previous page v TABLE OF CONTENTS Page INTRODUCTION. .1 Shelf assemblages. .2 Upper slope assemblages. .3 Pelagic species. .3 Fisheries. .4 The taxa included in this guide. .6 How to use this guide. .6 A PICTORIAL INDEX TO DIVISIONS, ORDERS, OR FAMILIES. .8 SEAWEEDS. .22 TECHNICAL TERMS. .22 DIVISION RHODOPHYTA - Red Algae. .23 Gracilariaceae. .23 Gigartinaceae. .23 Cryptonemiaceae. .24 Gelidiaceae. .24 Bangiaceae. .24 DIVISION PHAEOPHYTA - Brown Algae. .25 Laminariaceae. .25 Alariaceae. .25 DIVISION CHLOROPHYTA - Green Algae. .25 Ulvaceae. .25 SHRIMPS AND PRAWNS. .26 TECHNICAL TERMS AND MEASUREMENTS. .26 GUIDE TO ORDERS AND FAMILIES Infraorder Penaeidea - Penaeid Shrimps. .27 Infraorder Caridea - Caridean Shrimps. .28 GUIDE TO SPECIES Solenoceridae. .30 Aristeidae. .30 Penaeidae. .31 Oplophoridae. .32 Nematocarcinidae. .32 Pasiphaeidae. .33 Palaemonidae. .33 Pandalidae. .33 Crangonidae. .34 LOBSTERS. .35 TECHNICAL TERMS AND MEASUREMENTS AND ILLUSTRATED GUIDE TO FAMILIES. .35 GUIDE TO SPECIES Palinuridae. .37 Scyllaridae. .38 Nephropidae. .38 vi Page CRABS. .39 TECHNICAL TERMS AND MEASUREMENTS. .39 GUIDE TO ORDERS AND FAMILIES Suborder Anomura - Hermit Crabs, Stone Crabs, King Crabs, and Squat Lobsters. .40 Suborder Brachyura - True Crabs. .41 GUIDE TO SPECIES Lithodidae. .44 Homolidae. .44 Majidae. .45 Calappidae. .45 Geryonidae. .45 Portunidae. .46 Grapsidae. .46 BIVALVES AND GASTROPODS. .47 GUIDE TO SPECIES. Mytilidae (Class Bivalvia - pelycepods, clams, oysters, and allies). .47 Patellidae(Class Gastropoda - univalves, conches, whelks, chanks, and allies). .48 CEPHALOPODS. .49 TECHNICAL TERMS AND MEASUREMENTS. .49 GUIDE TO ORDERS AND FAMILIES Order Sepioidea - Cuttlefish, Ram’s Horn Squids, and Bob-tailed Squids. .51 Order Teuthoidea - Inshore and Oceanic Squids. .52 Order Vampyromorpha - Black Octopus. .57 Order Octopoda - Octopuses. .57 GUIDE TO SPECIES Sepiidae. .59 Loliginidae. .61 Onychoteuthidae. .63 Histioteuthidae. .63 Brachioteuthidae. .64 Ommastrephidae. .64 Thysanoteuthidae. .67 Octopodidae. .67 JAWLESS FISHES. .69 Order Myxiniformes - Hagfishes. .69 SHARKS. .70 TECHNICAL TERMS AND MEASUREMENTS. .70 GUIDE TO ORDERS AND FAMILIES Order Hexanchiformes - Cow and Frill Sharks. .72 Order Lamniformes - Mackerel Sharks. .72 Order Carcharhiniformes - Ground Sharks. .73 Order Squaliformes - Dogfish Sharks. .75 Order Squatiniformes - Angel Sharks. .75 vii Page GUIDE TO SPECIES Hexanchidae. .76 Chlamydoselachidae. .77 Odontaspididae. .77 Lamnidae. .77 Alopiidae. .78 Scyliorhinidae. .78 Triakidae. .80 Hemigaleidae. .81 Carcharhinidae. .81 Squalidae. .82 Oxynotidae. ..